Vehicle-wheel.



2 SHEETS-SHEET 1,

Patented Jan. 28, 1913.

R. H. STEVENSON. VEHICLE WHEEL. APPLICATION TILED JUNBZS, 1911.

' R. H. STEVENSON.

VEHICLE WHEEL.

APPLICATION FILED 11111223, 1911.

Patented Jan. 28, 1913.

2 SHEETS-SHEET 2 nomin'r n. srnvnnsox, or nusxnoon, moment.

VEHICLE-WHEEL.

Specification of Letters Patent.

Patented J an. 28, 1913.

Application filed June 28, 1911. Serial No. 684,991.. I

To all whom it may concem:

Be it known that I, ROBERT H. S'rnvEN- soN,a citizen of the UnitedStates, residing at Muskegon, I and State of Michigan, have inventedcertain new and useful Improvements in Vehicle-VVheels, of which thefollowing is a specification.

My invention relates to an improvement in wheels for vehicles of variouskinds.

The prime object of my invention is to provide a simple, efiicient,economical, and durable wheel, whereby effective and cushioning actionis accomplished when the vehicle is traveling over uneven roads, andalso when the vehicle is subjected to load ressure.

A further object is to possessing an inner rim an an outer tread, eachmade in a series of sections, and with broken joints, whereby the properand practical resiliency is procured and maintained.

Another object is to furnish a wheel whereby air pressure is utilized toeffect the cushioning action when said wheel is subjected to loadpressure, and which will be sufficiently resilient to permit of theseparate action of each cup shaped plunger, or spoke, to eii'ect theproper cushioning action for the purpose.

The foregoing provide a wheel and such other objects, as may occur fromthe following description, are accomplished by the constructionhereinafter more particularly described, illustrated by the accompanyingdrawings, forming a part of th s specification, and particu larlypointed out in the claims appended hereto. Y

In the accompanying drawings: Figure 1, illustrates a side view of thevehicle wheel embodying my invention, shown partly in section. Fi 2, isa transverse view, partly in section,o the view shown in Fig. 1. Fig. 3,is a fragmentary vertical section on an enlarged scale of myimprovement. Fig. 4, is

the inner rim sections and showing a section of one of the piston armsor rods. Fig. 5, is a detail view showing one of the plungers intransverse section, and Fig. 6 represents a transverse section of thewheel rim.

The reference numeral 1, designates a lgollow hub constituting a'pneumatic chamdisposed cylinders. Within each of the cylin the county ofMuskegon and surrounded by a series of radially-.

inders 2 is a cup-shaped plunger 3, provided with a projecting arm orpiston rod 4 which constitutes a spoke pivotally connected between ears5, extend1ng centrally from each of the inner metallic rim sections 6,by means of pins 7. The rim comprises an outer section,consisting-ofhinged metallic members 8, arranged to break joints with the inner rimsections and it will be seen thatat the hinged point I provide anelongated opening, for the purpose of permitting two of the plungers tosimultaneously move toward a common center. The pivotal connections 9,of the outer rim sections 8 are elongated, to permit a peripheralmovement. The numeral 11 designates a tire of leather or other fibrousmaterial formed with a series of perforations to receive projections 12,extending from the outer metallic rim sections 8. The rim sections 6,are each provided with an upraised central portion 13, adapted to extendover the elongated pivotal joints of the outer rim sections.

The utility and advantages of the improvement will be apparent. Thecushioning action of the pneumatic plungers is obvious, and theessential features of the tire, in connection with the peripheralmovement of the inner rim" sections, 1s evident.

It will be perceived that each inner rim section is provided with acentral recessed portion, and the hinged sections comprising the outerrim, are secured to each of said inner rim sections by suitable meanswithin said central recessed portions of the inner rim section.

As clearly shown in the drawings, it will be seen that each sectionconstituting the outer rim is provided at one end with two upwardlyprojecting ears, and at the other end with an upwardly extended portion,both of said end portions resting within the centrally recessed portionof each inner rim section 6, and being pivotally secured by pins 9,which pass transversely through each of the outer and inner rimsections.

Having described my invention, what I desire to claim and secure byLetters Patent is 1. A vehicle wheel comprising, a pneumatic hub,radially disposed tubes connected with said hub, each tube having withinthe same a cup-shaped plunger, a series of inner rim sections, eachinner section having a central recessed portion, and a series of hingedouter rim sections covering the joints of the inner section, eachportion being pivotally secured to inwardly projecting members formed onsaid central recessed portion, and each outer section secured to'eachinner section within the recessed central portion of each inner section.

2. A vehicle wheel comprising, a pneumatic hub, a series of radiallydisposed cylinders integral with said hub, each cylinder having withinthe same a cup-shaped plunger, a series of inner rim sections, eachinner section having a central recessed portion, and a series of outerrim sections-covering the joints of the inner sections, each outersection having an elongated pivotal connection within the recessedportion of each inner section, and each plunger being pivotally securedto inwardly projecting members formed on the outside of said centralrecessed portion, and each outer section being secured to each innersection within the recessed central portion of each inner section.

3. A vehicle wheel comprising, a pneumatic hub, a series ofradially-disposed tubes forming a art of said hub, each inner tubehaving wit in the same a cup-shaped plunger, a series of inner rimsections, each rim section having a central recessed portion andupwardly projecting ears, a series of outer rim sections, each sectionhaving upwardly extended ends located within said recessed portion ofthe inner sections, and secured therein by an elongated pivotalconnection, and each plunger being pivotally secured to said upwardprojecting ears, and each outer section secured to each inner sectionwith the central recessed portion of each inner section.

In testimony whereof I aflix my signature in presence of two witnesses.

ROBERT H. STEVENSON.

Witnesses:

MAY M. PLYER, ALFRED B. DENEl.

